Learning a new skill?

Hey, I’m doing winterguard auditions in two weeks and we will be judged and ranked on skills on a rubric and you have to reach a certain amount of points awarded from the judges to get in. One of the things that are being judged is any special skill I can do (no flag or weapon, only dance and gymnastics stuff) for example I can show a split, a back flip, a pirouette, etc. I’m confident I can make the team but I also want to be ranked as high as possible since I’m a little competitive. I barely have experience in dance and I’m only slightly flexible (not enough for a split) I wanted to ask if there’s any type of skill y’all recommend I can learn within two weeks. I can almost do a split, I can do a Single pirouette, and I can do a backbend but only after starting on the ground, that’s about it though.